Prepare before 1.13.0-rc1 release (#37407)

Author: hc-github-team-tf-core

CHANGELOG.md

@@ -1,4 +1,4 @@
-## 1.13.0 (Unreleased)
+## 1.13.0-rc1 (August 06, 2025)
 
 
 NEW FEATURES:
@@ -41,6 +41,8 @@ BUG FIXES:
 
 * static validation: detect invalid static references via indexes on objects. ([#37298](https://github.com/hashicorp/terraform/issues/37298))
 
+* Fixes resource identity being dropped from state in certain cases ([#37396](https://github.com/hashicorp/terraform/issues/37396))
+
 
 NOTES:
 
@@ -52,12 +54,6 @@ UPGRADE NOTES:
 * `terraform test`: External variables referenced within test files should now be accompanied by a `variable` definition block within the test file. This is optional, but users with complex external variables may see error diagnostics without the additional variable definition. ([#37195](https://github.com/hashicorp/terraform/issues/37195))
 
 
-EXPERIMENTS:
-
-Experiments are only enabled in alpha releases of Terraform CLI. The following features are not yet available in stable releases.
-
-- The experimental "deferred actions" feature, enabled by passing the `-allow-deferral` option to `terraform plan`, permits `count` and `for_each` arguments in `module`, `resource`, and `data` blocks to have unknown values and allows providers to react more flexibly to unknown values.
-
 ## Previous Releases
 
 For information on prior major and minor releases, refer to their changelogs:

version/VERSION

@@ -1 +1 @@
-1.13.0-dev
+1.13.0-rc1